Trenching and ditching plow.



.PATENTBDSEM 19, 1905. El Tl Rl E JI'G TRBNGHING AND DITGHING PLOW.

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"UNITED STATES PATENTv OEEIOE.

EDWARD THOMASRODNEY OOATES AND JOSEPH GORDON OOATES, OF'

MATAKOHENEW ZEALAND. TRENCHING A ND DITCHING PLOW.

' Specification of Letters Patent.

.Patented Sept. 19, 1905,

Application filed February 17, 1903. Serial No. 143,870.

To @ZZ whom it may concern..

Be it known that we, EDWARD THOMAS ROD- NEY COATEs and JOSEPH GORDON COATES, farmers, subjects of His Majesty theKing of the United Kingdom of Great Britain and Ireland, residing at Matakohe, in .the Provincial District of Auckland' and Colony of -N ew Zealand, have invented a certain new and useful Improved Trenching and Ditching IQ Plow, of which the following is a specification.

This invention relates to a trenching or ditching-plow; and the purpose of the same is to provide a simple and effectiveorganization of elements whereby the plow maybe VI5 operated to trench or ditch deeper than is l The invention also` consists in the details of construction and arrangement of the several parts, which will be morel fully hereinafter set forth.

In the drawings, Figurell is -a side elevation of plow embodying the features of 'the invention.

section on the line 2 2, Fig. 1. Fig. 3 isa view similar to Fig. 2 with beveled-wheel attachments and 4their supporting means added. Fig. tis a detail perspective view of y aportion of the plow.

Similar characters of reference are em- `ployed to indicate corresponding parts in the' several views.

The moldboardA is enlarged and has its front .upper edge B curved downwardlyand inwardly to the point where it commences to concave toward the share and its upper end C curved regularly to .meet the outer edge In other words, the curvature of this moldboard is such as to better facilitate the outthrow of the earth or soil and also toV tion of the clasp or yoke.

Fig. 2 is a transverse vertical edge of the share. The moldboard and lshare or plow proper is secured to beam E, the latter being shaped to carry a double horseshoe clasp or yoke F, which has a plurality of openings or holesG formed therein for raising and `lowering it Aon the said beam E.

Between the lower curved extremities of the clasp or yoke a colter or disk cutter H is concentrically fitted and held by a spindle a,

which has terminalbearing in the lower por- By means of a clamp N a cross-arm M is secured to the beam E ahead of the cutter H and carries. thereon a shank J, which is connected to an ordinary staggered wheel K by a spindle L, said shank being securely held to the cross-arm M.

vThe crossfarm M is 'long enough to cause the wheel K to be located at a distance outwardly from the plane of operation of the share D and also in longitudinal alinement-with therear portion ofthe moldboard. In advance of the cross-arm M a shankR is held on the beam E by a clamp T, the lower end of the shank beingA slightly bent to adapt it to carry a beveled staggered wheel S at the reduced end. This shank R can be adjusted to vany depth, and the same is true of the shank J, as shown by Fig. 4., and, furthermore, it willbe understood bythe use of the clamps N and 'I` the wheels K and S may be adjusted longitudinally on the beam E. The clevis U is longer thanthe ordinary devices of this class and is formed with more holes in it than usual to provide for a proper depth of adjustment in plowing, and the ordinary shackle V connects therewith for attachment thereto of the draft devices.

During the use of the plow in forming a trench the Wheel K is raised and lowered as the operation may require, and, furthermore, both wheels will be adjusted longitudinally of the beam and the wheel K inward-ly and' outwardly with respect to the beam to accommodate the different conditions or classes of work to be performed. The object of having the wheels respectively staggered and staggered and beveled is that they lighten and assist the draft of the plow and said wheels are prevented from working into the ground and clogging the progress of the plow. TheV IOO the landside. rlhe colter H is purposely made large, so as to cut deeper than usual and to lighten the draft.

The inward and outward movement ot' the wheel K is accomplished through the adjustment of the clamp l) engaging the shank J It will be understood that the clamps P, N, and T will be of the most approved pattern and those best adapted for the purpose, and i'nany rnodiiieations in the cut or cuts made by the plow may be accomplished by adjusting the cutting-colter H and the wheels K and S, as well as through the adjustment of the shackleV of the elevis U. It will also be understood that changes in the proportions and dimensions may be resorted to without departing from the spirit of the invention.

Having thus fully described the invention,

to which the moldboard is attached, a crossarm longitudinally adjustable on the beam in advance of the moldboard and projecting outwardly at one side of the latter, a staggered wheel vertically held on the arm and vertically and transversely adjustable with relation to the latter to modify its depression and distance outwardly with respect to the beam, a beveled staggered wheel :uljustably held on the beam in advance ol the cross-arm, the iirstnamed wheel having a greater diameter and standing outwardly a greater distance from the beam than the last-named wheel, and a rotating disk cutter :uljustably held on the beam close to the front portion olz the 1neldboard.

EDWARD THOMAS llODNliY CONPES. JOSEPH GORDON COA'IES.

Witnesses:

GEORGE XVILLIAM BAsLmv, Planer H ERB wirr BAs Lm. 

